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Publication of NL7210930ApublicationCriticalpatent/NL7210930A/xx
G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
G04C23/14—Mechanisms continuously running to relate the operation(s) to the time of day
G04C23/16—Mechanisms continuously running to relate the operation(s) to the time of day acting only at one preselected time or during one adjustable time interval
G—PHYSICS
G04—HOROLOGY
G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
G04C21/00—Producing acoustic time signals by electrical means
G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
G04C21/28—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to put into action electro-acoustic means, e.g. awakening by music
G—PHYSICS
G04—HOROLOGY
G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
